The manager called the anonymous reviewer a dastard for attacking staff without giving a name.

經理說那位匿名評論者是個卑鄙的懦夫，攻擊員工卻不敢具名。

Only a dastard would blame the junior clerk for his own shipping error.

只有卑鄙的懦夫才會把自己的出貨錯誤怪到新進職員頭上。

Customers complained that the caller acted like a dastard, threatening agents then hanging up quickly.

顧客抱怨那位來電者像個卑鄙的懦夫，威脅客服人員後就迅速掛斷。